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/*
This file is part of Kiten, a KDE Japanese Reference Tool
SPDX-FileCopyrightText: 2001 Jason Katz-Brown <jason@katzbrown.com>
SPDX-FileCopyrightText: 2006 Joseph Kerian <jkerian@gmail.com>
SPDX-FileCopyrightText: 2006 Eric Kjeldergaard <kjelderg@gmail.com>
SPDX-FileCopyrightText: 2011 Daniel E. Moctezuma <democtezuma@gmail.com>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "deinflection.h"
#include "dictfileedict.h"
#include "dictquery.h"
#include "entryedict.h"
#include "entrylist.h"
#include <KLocalizedString>
#include <KMessageBox>
#include <QFile>
#include <QHash>
#include <QList>
#include <QStandardPaths>
#include <QString>
#include <QStringDecoder>
#include <QTextStream>
using namespace Qt::StringLiterals;
// This is a very primative form of information hiding
// But C++ can get stupid with static QT objects...
// So this turns out to be much, much easier
// TODO: Fix this for thread safety/functionality (I'm presuming it's broken atm)
// Declare our constants
QList<Deinflection::Conjugation> *Deinflection::conjugationList = nullptr;
Deinflection::Deinflection(const QString &name)
: m_deinflectionLabel(QString())
, m_wordType(QString())
, m_dictionaryName(name)
{
}
QString *Deinflection::getDeinflectionLabel()
{
return &m_deinflectionLabel;
}
QString *Deinflection::getWordType()
{
return &m_wordType;
}
EntryList *Deinflection::search(const DictQuery &query, const QList<QString> &preliminaryResults)
{
if (conjugationList == nullptr) {
return nullptr;
}
m_deinflectionLabel = QString();
m_wordType = QString();
auto entries = new EntryList();
QStringList edictTypesList;
edictTypesList.append(EdictFormatting::Adjectives);
edictTypesList.append(EdictFormatting::Verbs);
QString edictTypes = edictTypesList.join(QLatin1Char(','));
for (const QString &item : preliminaryResults) {
EntryEdict *entry = makeEntry(item);
QStringListIterator it(entry->getTypesList());
bool matched = false;
while (it.hasNext() && !matched) {
if (edictTypes.contains(it.next())) {
entries->append(entry);
matched = true;
}
}
if (!matched)
delete entry;
}
auto results = new EntryList();
EntryList::EntryIterator it(*entries);
while (it.hasNext()) {
auto entry = static_cast<EntryEdict *>(it.next());
QString text = query.getWord();
if (text.isEmpty()) {
text = query.getPronunciation();
if (text.isEmpty()) {
entries->deleteAll();
delete entries;
delete results;
return nullptr;
}
}
QString word = entry->getWord();
for (const Deinflection::Conjugation &conj : *conjugationList) {
if (text.endsWith(conj.ending) && word.endsWith(conj.replace) && text.startsWith(word.left(word.length() - conj.replace.length()))) {
QString replacement = text;
replacement.truncate(text.length() - conj.ending.length());
replacement += conj.replace;
if (word == replacement) {
if (m_deinflectionLabel.isEmpty()) {
m_deinflectionLabel = conj.label;
}
if (m_wordType.isEmpty()) {
if (entry->isVerb()) {
m_wordType = i18n("verb");
} else if (entry->isAdjective()) {
m_wordType = i18n("adjective");
}
}
results->append(entry);
break;
}
}
}
}
delete entries;
return results;
}
bool Deinflection::load()
{
if (conjugationList != nullptr) {
return true;
}
conjugationList = new QList<Conjugation>;
QString vconj = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QStringLiteral("kiten/vconj"));
// Find the file
if (vconj.isEmpty()) {
KMessageBox::error(nullptr, i18n("Verb deinflection information not found, so verb deinflection cannot be used."));
return false;
}
QHash<unsigned long, QString> names;
// Open the file
QFile f(vconj);
if (!f.open(QIODevice::ReadOnly)) {
KMessageBox::error(nullptr, i18n("Verb deinflection information could not be loaded, so verb deinflection cannot be used."));
return false;
}
QStringDecoder decoder("EUC-JP");
const QString decoded = decoder(f.readAll());
QTextStream t(decoded.toUtf8());
// The file starts out with a number -> name list of the conjugation types
// In the format "#[#] NAME\n"
// The next section beginning is flagged with a $ at the beginning of the line
for (QString text = t.readLine(); !t.atEnd() && text.at(0) != '$'_L1; text = t.readLine()) {
if (text.at(0) != '#'_L1) {
unsigned long number = text.left(2).trimmed().toULong();
QString name = text.right(text.length() - 2).trimmed();
names[number] = name;
}
}
// Now for the actual conjugation data
// Format is "NUMBER_FROM_LIST_ABOVE ENDING_TO_REPLACE\n"
QString replacement = QString();
for (QString text = t.readLine(); !t.atEnd(); text = t.readLine()) {
if (!text.isEmpty() && text.at(0) == '$'_L1) {
replacement = text.right(1).trimmed();
} else if (!text.trimmed().isEmpty() && text.at(0) != '#'_L1) {
unsigned long labelIndex = text.section(' '_L1, 0, 1).trimmed().toULong();
Conjugation conj;
conj.label = names.value(labelIndex);
conj.ending = text.section(' '_L1, 2).trimmed();
conj.replace = replacement;
conjugationList->append(conj);
}
}
f.close();
return true;
}
inline EntryEdict *Deinflection::makeEntry(const QString &entry)
{
return new EntryEdict(m_dictionaryName, entry);
}
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